1、 International Telecommunication Union ITU-T H.780TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (06/2012) SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMSIPTV multimedia services and applications for IPTV Digital Signage Digital signage: Service requirements and IPTV-based architecture Recommendation
2、ITU-T H.780 ITU-T H-SERIES RECOMMENDATIONS AUDIOVISUAL AND MULTIMEDIA SYSTEMS CHARACTERISTICS OF VISUAL TELEPHONE SYSTEMS H.100H.199 INFRASTRUCTURE OF AUDIOVISUAL SERVICES General H.200H.219 Transmission multiplexing and synchronization H.220H.229 Systems aspects H.230H.239 Communication procedures
3、H.240H.259 Coding of moving video H.260H.279 Related systems aspects H.280H.299 Systems and terminal equipment for audiovisual services H.300H.349 Directory services architecture for audiovisual and multimedia services H.350H.359 Quality of service architecture for audiovisual and multimedia service
4、s H.360H.369 Supplementary services for multimedia H.450H.499 MOBILITY AND COLLABORATION PROCEDURES Overview of Mobility and Collaboration, definitions, protocols and procedures H.500H.509 Mobility for H-Series multimedia systems and services H.510H.519 Mobile multimedia collaboration applications a
5、nd services H.520H.529 Security for mobile multimedia systems and services H.530H.539 Security for mobile multimedia collaboration applications and services H.540H.549 Mobility interworking procedures H.550H.559 Mobile multimedia collaboration inter-working procedures H.560H.569 BROADBAND, TRIPLE-PL
6、AY AND ADVANCED MULTIMEDIA SERVICES Broadband multimedia services over VDSL H.610H.619 Advanced multimedia services and applications H.620H.629 Ubiquitous sensor network applications and Internet of Things H.640H.649 IPTV MULTIMEDIA SERVICES AND APPLICATIONS FOR IPTV General aspects H.700H.719 IPTV
7、terminal devices H.720H.729 IPTV middleware H.730H.739 IPTV application event handling H.740H.749 IPTV metadata H.750H.759 IPTV multimedia application frameworks H.760H.769 IPTV service discovery up to consumption H.770H.779 Digital Signage H.780H.789For further details, please refer to the list of
8、ITU-T Recommendations. Rec. ITU-T H.780 (06/2012) i Recommendation ITU-T H.780 Digital signage: Service requirements and IPTV-based architecture Summary Recommendation ITU-T H.780 describes a general framework for digital signage (DS) services based on IPTV architecture from the viewpoint of technic
9、al and service aspects. First, DS domains, a generic DS architecture and the classification of DS services are introduced. As technical IPTV specifications are close to those of DS, a brief comparison between the two services is provided (e.g., structure of a functional group and detailed media proc
10、essing). Subsequently, high-level requirements concerning DS services are described. In addition, this Recommendation contains content delivery methods and details of functionalities of both server- and client-side applications for DS services. History Edition Recommendation Approval Study Group 1.0
11、 ITU-T H.780 2012-06-29 16 Keywords Content delivery, content management, digital signage, DS, DS services, playlist, terminal devices. ii Rec. ITU-T H.780 (06/2012) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications,
12、information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on
13、a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid dow
14、n in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication
15、administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory
16、 provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws atten
17、tion to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others
18、 outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent t
19、he latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2013 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T H.780 (06/2012) iii
20、 Table of Contents Page 1 Scope 1 2 References. 1 3 Definitions 2 3.1 Terms defined elsewhere 2 3.2 Terms defined in this Recommendation . 2 4 Abbreviations and acronyms 3 5 Conventions 4 6 Overview 5 6.1 Digital signage domains . 5 6.2 Architecture overview 6 6.3 Examples of services 8 6.4 Types of
21、 terminal devices . 9 7 Requirements 9 7.1 General requirements 9 7.2 Content management 10 7.3 Content delivery . 10 7.4 Security requirements . 11 7.5 Network requirements 11 7.6 Terminal device requirements 11 8 Functional architecture and key features 13 8.1 Functionalities of digital signage ap
22、plications . 13 8.2 Functionalities of terminal devices . 15 8.3 Transport and control mechanisms . 16 8.4 Security . 17 8.5 Audience measurement 17 9 Metadata . 17 9.1 Content information 17 9.2 Terminal device information 18 9.3 Ambient information 19 9.4 Results of playing contents . 19 9.5 Sched
23、ule-relevant information . 19 10 Terminal device interfaces 20 10.1 Input interfaces . 20 10.2 Output interfaces 20 Appendix I Digital signage use cases . 21 I.1 Screen for single content source . 21 I.2 Screen by using multiple content/data sources . 21 iv Rec. ITU-T H.780 (06/2012) Page I.3 Emerge
24、ncy communications 24 I.4 Interaction amongst audience and terminals 24 I.5 High-level architecture expansion 25 Appendix II Codecs and data formats for digital signage services . 26 Appendix III Privacy of digital signage services 27 III.1 Overview 27 III.2 Principles for privacy . 27 Appendix IV T
25、erminal device interfaces 28 IV.1 Input interface . 28 IV.2 Output interfaces 28 Bibliography. 29 List of Tables Page Table 1 Relations of functional blocks among ITU-T Recommendations . 15 Table 2 Common content elements/attributes . 18 Table 3 Common terminal device elements/attributes 19 Table 4
26、Common ambient information elements/attributes 19 Table 5 Common elements/attributes regarding play-logs . 19 Table II.1 Standards of codecs and data formats 26 Table II.2 Standards of data wrapping 26 List of Figures Page Figure 1 Generic digital signage domains as per ITU-T Y.1910 . 5 Figure 2 Ove
27、rview of digital signage architecture (based on ITU-T Y.1910) . 7 Figure 3 Details of the server-side digital signage applications . 13 Figure 4 Details of digital signage client 15 Figure I.1 Use case 1A: Flow for DS within an organization . 21 Figure I.2 Use case 2A: Flow for linking different bus
28、inesses . 22 Figure I.3 Use case 2B: Flow for advertisement services . 23 Figure I.4 Use case 3: Disaster information service . 24 Figure I.5 Expanded generic DS architecture . 25 Rec. ITU-T H.780 (06/2012) 1 Recommendation ITU-T H.780 Digital signage: Service requirements and IPTV-based architectur
29、e 1 Scope This Recommendation addresses the high level requirements, architecture and mechanisms for dealing with aspects of digital signage contents, network, metadata and terminal devices on the basis of IPTV architecture ITU-T Y.1910. It is expected that requirements and relevant specifications i
30、dentified in this Recommendation can be applied appropriately according to the digital signage services and their business models. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendat
31、ion. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references l
32、isted below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T G.1080 Recommendation ITU-T G.1080 (2008), Quality of experience requirem
33、ents for IPTV services. ITU-T G.1081 Recommendation ITU-T G.1081 (2008), Performance monitoring points for IPTV. ITU-T H.720 Recommendation ITU-T H.720 (2008), Overview of IPTV terminal devices and end systems. ITU-T H.721 Recommendation ITU-T H.721 (2009), IPTV terminal devices: Basic model. ITU-T
34、H.750 Recommendation ITU-T H.750 (2008), High-level specification of metadata for IPTV services. ITU-T H.760 Recommendation ITU-T H.760 (2009), Overview of multimedia application frameworks for IPTV. ITU-T H.770 Recommendation ITU-T H.770 (2009), Mechanisms for service discovery and selection for IP
35、TV services. ITU-T X.1191 Recommendation ITU-T X.1191 (2009), Functional requirements and architecture for IPTV security aspects. ITU-T Y.1541 Recommendation ITU-T Y.1541 (2002), Network performance objectives for IP-based services. ITU-T Y.1901 Recommendation ITU-T Y.1901 (2009), Requirements for t
36、he support of IPTV services. ITU-T Y.1910 Recommendation ITU-T Y.1910 (2008), IPTV functional architecture. ISO/IEC 15938-5 ISO/IEC 15938-5:2003, Information technology Multimedia content description interface Part 5: Multimedia description schemes. ISO/IEC 15938-5 Amd.2 ISO/IEC 15938-5:2005/Amd.2:2
37、005, Multimedia description schemes user preference extensions. 2 Rec. ITU-T H.780 (06/2012) ETSI TS 102-822-3-1 ETSI TS 102 822-3-1 V1.7.1 (2011), Broadcast and On-line Services: Search, select and rightful use of content on personal storage systems (“TV-Anytime“); Part 3: Metadata; Sub-part 1: Pha
38、se 1 Metadata schemas. ETSI TS 102 822-3-3 ETSI TS 102 822-3-3 V1.5.1 (2011), Broadcast and On-line Services: Search, select, and rightful use of content on personal storage systems (“TV-Anytime“); Part 3: Metadata; Sub-part 3: Phase 2 Extended Metadata Schema. 3 Definitions 3.1 Terms defined elsewh
39、ere This Recommendation uses the following terms defined elsewhere: 3.1.1 content provider ITU-T Y.1910: The entity that owns or is licensed to sell content or content assets. 3.1.2 distribution ITU-T Y.1910: In the context of IPTV architecture, “distribution“ is defined as sending the content to ap
40、propriate intermediate locations to enable subsequent delivery. 3.1.3 end user ITU-T Y.1910: The actual user of the products or services. NOTE The end user consumes the product or service. An end user can optionally be a subscriber. 3.1.4 functional architecture b-ITU-T Y.2012: A set of functional e
41、ntities and the reference points between them used to describe the structure of an NGN. These functional entities are separated by reference points, and thus, they define the distribution of functions. NOTE 1 The functional entities can be used to describe a set of reference configurations. These re
42、ference configurations identify which reference points are visible at the boundaries of equipment implementations and between administrative domains. NOTE 2 This definition is taken from b-ITU-T Y.2012 and therefore relates to NGNs. However, it is also valid for other networks, e.g., networks suppor
43、ting digital signage terminal devices. 3.1.5 functional entity b-ITU-T Y.2012: An entity that comprises an indivisible set of specific functions. Functional entities are logical concepts, while groupings of functional entities are used to describe practical, physical implementations. 3.1.6 media b-I
44、TU-T Y.2012: One or more of audio, video, or data. 3.1.7 multimedia b-ITU-T T.174: The property of handling several types of representation media. 3.1.8 service provider b-ITU-T M.1400: A general reference to an operator that provides telecommunication services to customers and other users either on
45、 a tariff or contract basis. A service provider can optionally operate a network. A service provider can optionally be a customer of another service provider. NOTE Typically, the service provider acquires or licenses content from content providers and packages this into a service that is consumed by
46、 the end user. 3.1.9 terminal device (TD) ITU-T Y.1901: An end-user device which typically presents and/or processes the content, such as a personal computer, a computer peripheral, a mobile device, a TV set, a monitor, a VoIP terminal or an audio-visual media player. 3.2 Terms defined in this Recom
47、mendation This Recommendation defines the following terms: 3.2.1 content: A combination of audio, still image, graphic, video, or data. Rec. ITU-T H.780 (06/2012) 3 NOTE A variety of formats is classified as the “data“ (e.g., text, encoded values, multimedia description language introduced by ITU-T
48、H.760). 3.2.2 delivery: Sending of contents to terminal devices. 3.2.3 digital signage (DS): A system that sends information, advertising and other messages to electronic devices (e.g., displays, speakers) in accordance with the time of day and the location of the display, or the actions of audience
49、. Contents and their relevant information, such as display schedules, are delivered over networks. 3.2.4 network provider: The organization that maintains and operates the network components required to support a service or set of services. 3.2.5 playlist: Composed of a list of contents. NOTE 1 This data is created and provided by digital service providers. NOTE 2 This data can be selected by an end
